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数值
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  numerical
    Numerical Simulation Research of Several Problems in Man Machine and Enviroment Engineering
    人机与环境工程中若干问题的数值模拟研究
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    Study of the Numerical Methods for Satellite Dynamics Equations and Application of Satellite Laser Ranging Technique to Precise Orbit Determination
    人卫运动方程的数值解法及激光测距技术在精密定轨中的应用研究
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    Experimental and Numerical Study of Premixed Superadiabatic Combustion in Porous Media with Reciprocating Flow
    多孔介质内往复流动下超绝热燃烧的实验和数值模拟研究
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    Research on Numerical Simulation of N-S Equations for the Three-Dimensional Flow Field in Transonic Compressor Rotor
    跨声速压气机转子三维流场Navier-Stokes方程数值模拟
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    Theoretical Analysis and Numerical Simulation of Dense Compressible Gas-Solid Two-Phase Turbulent Flow
    密相可压气固两相湍流流动的理论分析及其数值模拟
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  numerically
    The design of a micro annular combustor was optimized numerically by computing the 3-D internal flow of combustors using computational fluid dynamics software Fluent with the RNG k-ε turbulence model.
    为了优化微型环形燃烧室的设计方案,利用流体分析软件Fluent,采用RNGk-ε双方程湍流模型分别对两个微型环形燃烧室的内部流场进行了三维的冷态数值模拟,得出了它们的内部流场分布。
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    The four different louver angles(15°, 20°,24°,28°) are numerically studied. it is obtained that the heat transfer performance is the best for the louver angle at 24°, and the pressure drop increases with the increase of the louver angle.
    对4种百叶窗倾角(15°,20°,24°,28°)进行了数值模拟,比较发现24°倾角的百叶窗翅片的传热性能最好,压降随着倾角的增大而增大。
    Rime and Glaze Ice Accretion on NACA0012 airfoil are numerically predicted using CFD method.
    采用CFD方法,对霜冰和明冰在NACA0012翼型上的成长过程进行了数值预测;
    2. Employing classical control techniques,the satellite earth acquisition has been studied and numerically simulated.
    2、以经典控制理论作为主要工具,研究了卫星捕获地球的技术,并对卫星捕获地球的整个过程进行了数值仿真。
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    The non-linear fluid-structure interaction is simulated numerically by solving the N-S equations, the pressure equation and the cylinder motion' equation in turn for every time step.
    通过在每一时间步分别求解N-S方程、Poisson方程和柱体运动方程,数值模拟流体和柱体之间的非线性耦合运动。
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  numerical and
    NUMERICAL AND EXPERIMENTAL STUDY OF TURBULENT COMBUSTION MODEL
    紊流燃烧模型数值与实验研究
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    Numerical and experimental study of mixed convection in a cavity
    方腔内混合对流换热的数值研究与模型实验
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    Numerical and Experimental Study of a Plug Nozzle with two Rectangular Inner cells
    矩形内喷管塞式喷管的数值计算与实验研究
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    Numerical and Experimental Investigations of Mach 4 Pseudo-Shock Waves in a Two-dimensional Square Duct
    马赫数4二维直管内拟似冲击波实验和数值研究
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    Numerical and Experimental Study of Effusion Cooling of a Plate with Compact Tiny Holes
    致密微孔壁复合冷却数值模拟与实验研究
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  “数值”译为未确定词的双语例句
    Vortex Lattice Method for the Calculation of Wind Tunnel Boundary Corrections
    亚音速风洞三元机翼升力洞壁干扰修正的数值计算方法—涡格法
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    FINITE DIFFERENCE METHOD FOR THE BOUNDARY LAYER CALCULATION OF THE CASCADE FLOW WITH S_1 STREAM SURFACE
    S_1流面叶栅附面层微分方程数值解(一)
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    A CALCULATION METHOD FOR THE PROPELLER-WING INTERFERENCES
    螺旋桨滑流-机翼干扰效应的数值计算方法
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    A CALCULATION METHOD OF GROUND EFFECTS FOR THE AIRCRAFT
    地面对飞机干扰影响的数值计算方法
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    AN ANALYTICAL AND EXPERIMENTAL STUDY OF A SUBSONIC DIFFUSER OF A SUPERSONIC INLET
    超音进气道的亚音扩压器流场的数值计算和实验研究
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  numerical
The essential dimension is a numerical invariant of the group; it is often equal to the minimal number of independent parameters required to describe all algebraic objects of a certain type.
      
We do this in a setting that closely resembles the numerical analysis setting of Mallat and Zhong and that seems to capture something of the essence of their (practical) reconstruction method.
      
We do this in a setting that closely resembles the numerical analysis setting of Mallat and Zhong and that seems to capture something of the essence of their (practical) reconstruction method.
      
Mathematical details and numerical examples are included.
      
Then, we describe a numerical method to compute the dual function and give an estimate of the error.
      
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  numerically
It is well known that Gabor expansions generated by a lattice of Nyquist density are numerically unstable, in the sense that they do not constitute frame decompositions.
      
Spherical harmonic series have many of the same wonderful properties as Fourier series, but have lacked one important thing: a numerically stable fast transform analogous to the Fast Fourier Transform (FFT).
      
Finally, we consider the spline of order 2; we investigate numerically the region of the time-frequency plane where it generates a frame and we compute the dual function for some values of the parameters.
      
This makes them numerically attractive for applications in geophysical modeling.
      
It is simple in structure, implementable, numerically efficient and has global convergence.
      
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  numerical and
Numerical and empirical results are presented establishing the empirical stability of the basic algorithm.
      
Both numerical and compositional variations were monitored for a long-term (more than 1.5 years) utilization process in an association of microorganisms decomposing organic pollutants.
      
On automodel numerical and asymptotic solutions of boundary-layer equations for high rates of injection
      
Near the flow axis the numerical and analytic solutions are fairly close, but at a distance from the axis the assumptions made reduce the accuracy of the approximate solutions.
      
Numerical and approximate (by the method of moments) solutions of the kinetic equation are obtained.
      
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A horizontal heat generating square conduit with thin shell construction

一个横的薄壁结构的发热的方槽可以看作是没有间隙的双槽形结构。沿竖的中央对称轴线对剖开并在两半之间留个间隙,可以大大地增加薄壁的散热。在这种情况下,薄壁的内部表面亦成为有效的散热面积。这种结构在大电流母线和电子线路上有一定的实际应用。但是它的散热特性至今尚未见到有系统性的研究报导。为了提供设计依据,本文用实验方法研究了H=46毫米和H=92毫米二种规格的双槽形发热体在不同间隙开度条件下的散热,间隙开度范围自0至∞。实验参数范围;q:250~2450大卡/米~2小时,△t:22~128℃。最后结果以无量纲关系形式表出在图上。对于封闭的方槽,外表面的对流换热要比相应的横园柱的对流换热低得多,并可综合成下列公式:从s=0出发,随着s数值的增加,对流放热强度先是增加的,当s/H=0.33时趋近于最高值;对于大开度,再增加s,对流放热强度反而降馒;当s/H>1.5时,对流放热强度已经降到s=∞时的值。本文还包括纹影技术的研究。摄取了不开间隙开度条件下的纹影照片。从这些照片上可以看出,在内表面的上角部分向上流动的竖壁上的边界层被新生的横壁上的边界层冲散;在散热最有利间隙开度时,双槽体内部气流具有一种拔风作用。

Introduced in this paper is a new method by which the camber line of the turbine blade profile is described by a number of high order polynomial function sections, and which ensures the absence of flex point that is usually accompnied with that function. The paper offers to give a'description of the radius of the inscribed circles of the profile by a number of high order polynomial function sections & to find with numerical envelope method two envelops of the inscribed circles family of the profile, thus forming...

Introduced in this paper is a new method by which the camber line of the turbine blade profile is described by a number of high order polynomial function sections, and which ensures the absence of flex point that is usually accompnied with that function. The paper offers to give a'description of the radius of the inscribed circles of the profile by a number of high order polynomial function sections & to find with numerical envelope method two envelops of the inscribed circles family of the profile, thus forming the pressure surface and the suction surface of the blade profile respectively.

本文提出了用分段高次多项式来描述涡轮叶型的中弧线,并保证不出现多项式所固有的可能会引起波动危险的一种新方法;提出了用分段高次多项式来描述叶型内切圆的半径;用数值包络法求出叶型内切圆族的两条包络线而构成叶型的叶盆,叶背型面。

At present, many of numerical methods for calculating aerodynamic forces of arbitrary wings are used to solve longitudinal characteristics, only a few of them are directly used to solve lateral and directional characteristics. This paper discusses the aerodynamical models of votes-lattice singularity distribution method of wings with angle of attack and sideslip on the basis of references [1] and [2]. For wings of arbitrary plan forms, sideslip aerodynamic characteristics have been calculated numerically and...

At present, many of numerical methods for calculating aerodynamic forces of arbitrary wings are used to solve longitudinal characteristics, only a few of them are directly used to solve lateral and directional characteristics. This paper discusses the aerodynamical models of votes-lattice singularity distribution method of wings with angle of attack and sideslip on the basis of references [1] and [2]. For wings of arbitrary plan forms, sideslip aerodynamic characteristics have been calculated numerically and compared with experimental values.

目前,关于机翼气动力的数值解法,多数是解决纵向问题,直接解决横侧向问题的尚少。本文在综合资料[1]、[2]的基础上,讨论了在有迎角和侧滑角情况下,涡格奇点分布法的气动模型。对几种平面形状的机翼侧滑气动力特性进行了数值计算,并与实验作了比较。

 
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